The 'online' is not as environmentally friendly as it claims

Researchers from Carnegie Mellon University,
Stanford University, and the Lawrence Berkeley Lab confirmed that the
outdated use of plastic CDs, printing plants, distribution of trucks or
inefficient warehouse stores which has a positive impact, but the move
to a digital downloads also consumes resources that were not taken into
account. An analysis of six scenarios (three for purchase online and
the remaining others for physical purchase) suggests that buying
digital music through the internet, increases the consumption and
emissions of carbon dioxide between 40% to 80% associated with the
physical delivery of the music to the customer who wants purchase a cd.